100 best money moves
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If you find another homeowner who likes your place -- and you like his -- you can save a bundle in transaction fees by swapping, says Sergei Naumov, founder of goswap.org.
Some 30,000 users have placed a listing or submitted a proposal on his site (he doesn't track completed deals).
Other sites that facilitate swaps include besthouseswap.com and onlinehousetrading.com. Interested? Make sure that you get a darn good appraisal and inspection, and use a lawyer to oversee any deal.
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Last updated April 28 2011: 11:32 AM ET